#app {
    display: flex;
    height: 100%;
}
#app .left-menu {
    width: 200px;
    display: inline-block;
    background: #f7dfdf;
}
#app .left-menu li {
    height: 40px;
    display: flex;
    align-items: center;
    padding-left: 30px;
    font-size: 18px;
}
#app .left-menu li i {
    margin-right: 20px;
}
#app .left-menu a {
    color: #6A484C;
    display: block;
    text-decoration: none;
}
#app .left-menu a:hover {
    color: #E84A4A;
}
#app .left-menu .router-link-active {
    background: #F5CECE;
    color: #E84A4A;
}
#app .right-content {
    width: calc(100% - 200px);
    display: inline-block;
    background: #fcfcfc;
}